Plate-punching machine.



N0. 860,266. 7 PATENTED JULY 16, 1907. E. W. SUMMERS. PLATE 'PUNGHINGMACHINE.

APPLICATION FILED JAN. 24, 1907. V

4BHEETS-SHEBT 1- I NVENTOEz- PATENTED JULY 16, 1907.

E. W. SUMMERS.

' PLATE PUNGHING MACHINE.

, APPLIOATION FILED LL24; 1907.

4 SHEETS-SHEET 2.

|NVENTOR=- PATBNTED JULY 16 1907.

E. W. SUMMERS.

PLATE PUNGHING MACHINE.

APPLICATION FILED JAN. 24, 1907.

4 SHEETS-SHEET 4.

EDGAR WEBSTER SUMMERS, OF WILKINSBURG, PENNSYLVANIA.

PLATE-PUNOHING MACHINE.

Specification of Letters Patent.

Patented July 16, 1907.

Application filed January 24,1907. Serial No. 858.914.

: To all whom it may concern:

Be it known that I, EDGAR WEBsTER SUMMERS, of

Wilkinsburg, in the county of Allegheny and State .of

Pennsylvania, have invented a certain new and useful Improvement inPlate-Punching Machines, of which improvement the following is aspecification, reference being had to the accompanying drawings,-formingpart of this specification, in which Fig. 1. Is a partial transverseelevation of my improved plate punching machine, taken in line 11 in 2,Is a partial' longitudinal elevation of the same, with aportion brokenaway between the center and each end;

Fig. 3. Is a longitudinal vertical section, with each end broken away,taken in line 3-3 in Fig. 1

. Fig. .4, Is a partial plan view 'of the punch and die- ;holding frame;

fat.

Fig. 5. Is a' section through one of the bars of the punch-holdingframe, showing a punch indetail;

Fig. 6. Is a. cross section through one of the bars of the die-holdingframeshowing the die and holder in detail; v

Figs. 7 8. Show'an alternative arrangement of the clamping device forthe punch and die-holding frame;

Fig; 9. Shows a diagram of the electric transmission device forcontrolling the operations of the punching machine. 1

My invention relates to apparatus for punching a. multiplicity of holesin metallic sheets or plates, such as rivet holes wherein a great numberof plates are to be punched duplicates of each other in the arrangementand location of the rivet holes, such as plates for steel carconstruction and other similar fabrication, to do which I have arrangedto locate a punch and its corre sponding die for each hole to bepunched'in the plate or in other words to have as many punches and diesas there are holes to be punched and further, to provide for achange inlocation of the punches so as to punch any arrangement of holes requiredin any plate. In operation the plate is placed in the machine betweenthe punches and dies and in the operation of passing the plate throughthe machine all of the holes are punched in the exact location requiredwithout depending on the operator for adjustment or care in the locationof the holes. Further explanation of the operation will be givenhereafter. V

In the'drawings I show a machine having an upright framework 1, similarto the ordinary press frame. I

show a vertically reciprocating-head 2, the guide-bars '3, the eccentricshaft 4, the eccentric straps 5 and connecting bars 6, the geartransmission 7 and motor 8 all of which provide the actuating means fordriving the punch through the plate. I show the bed-plate 9 which isarranged vertically under the reciprocatinghead 2, the toggle-beams 10and toggles 11, the eccentric tical movement of 'bed plate 9, andfurnishes vertical support for bed-plate 9. vI show the guide-ways 13,which are similar to the V shaped guide-ways 0n the ordinary metalplaner. These guide-ways extend continuously out each side of the mainframe 1 for such a distance as is required for handling and supportingthe maximum length plate to be operated upon or punched. I show theside-bars 14 ofthe dieholding frame which has a V shaped bottom toconform with the top part of guide-ways 13. I show the crossbars 15which are bolted between the side-bars 14 and which may be located inany position from end to end of side-bars 14 by means of clamping orbolting in the continuous '1 slot 16. These bars 15' are the dieholdingbars and are provided and arranged both transversely and longitudinallythe same M20 and 21 as shown in Fig.4, the object being to locate a diefor each hole that is to be punched in a particular plate, fixing thesedies in position so as to punch a great many duplicate plates, changingthe Whole arrangement or location of dies when punching a differentarrangement of holes. I show the side frame-bars 17 and 18, which arethe longitudinal pieces of the upper or punch carrying-bars and also theend cross-bar 19 which connects 17 and 18 at the outer ends of the punchcarrying frame. A similar cross-bar may be used at the outer end of'theside-bars 14 of the die carrying-frame. Cross-bars 20 andlongitudinal-bars 21 of the punch carrying-frame are of similarconstruction to bars 15 and have their attachments to side-bars 17 and18 adjustably connected, the same as in 16. The bars 20 and 21 arearranged soas to carry the punches vertically over the dies andregistering therewith. I The side-bar 17 is hinge connected to one ofthe side-bars 16, the upper frame can be rotated about this hingeconnection 22 thus permitting the upper or punch carrying frame to beraised at one edge-for the purpose of inserting the plate to be punched,which when in position rests on top of the dies 23. By lowering theupper frame over the plate, the punches 24 are then in positionregistering over the dies 23. I show the rack 25. attached to sideframes 14 and the .pinion 26 which is located on cross-shaft 27 and isgear connected by means of gear-wheel 28, drivechain 29 and pinion 30tomotor-shaft 31, which motor furnishes the operating power for movingthe die-holding frame 16 along the ways 13. I show the large sizeddetail of the punch and die in Figs. 5 and 6. In this detail the dieholding-bar 15 and punch holding-bar 20 are,of similar construction. The'die holding-block 32 and the punch guide-block 33 have dove-tailedsides 34 which are locked in position by cap-bars 15 and bolts 15". Thedies 23 are of the usual form and rest in a recess in the upper part of32. The punch 24 is of the usual form'and is attached to the specialpunch-carrying-shank 35 by means ,of the usual flange-nut 36. The

punch carrying-shank 35 is provided with a head 37, which engages theupper end of the spiral-spring 38, which spring is provided for thepurpose of assisting in the removal of thepunch from the plate after thehole is punched. Figs. 7 and aresimilar to Figs; 5 andfi,

difiering however in the arrangement for clamping the ,ing. The electriccontrolling device in Fig. 9 and shown partially in detail in Fig. 2 isthe usual arrangement in use on machinery having intermittent motion,for which I make no claim.

In operating the machine the die and'punch holdingframes with their sidebars, which for convenience as a whole I will call the platen, thisplaten is moved to- ,wards one end of the ways until the end of theplaten is past the main frame 1, the. whole platen being clear'and' freefrom this said mainframe, so as to permit of raising the upper or punchcarrying portion of the platen; The plate then to be punched is'placedon the lower frame or. die portion of the platen, shoving the plateagainst stops that have been located to suitthe particular plate whichadjusts it in position to receive the holes where wanted. The punches orupper partfof platen is then lowered on top of the plate and is readyfor the opera tion. The machine is then started which causes the platento move into frame-1 until the punches at the end of'the plat'e'ncome'under the reciprocating head 2. The platen is then stopped and byany suitable actuating mechanism the power is turned onpausing head 2 tomove .downward' engaging punch shanks 37 and thereby forcing the punchesthrough the plate. The head Zreturnsto its upper position and by anysuitable operating mechanism has its'power cut out while the power isapplied to driving the platen forwarduntil an other lot of punches anddies come under. the. head 2.

'- The platen is again brought to rest while the punching operation isperformed the same as above described for the first lot of punchescoming under head 2. This op eration is'repeatedthroughout the lengthoftheplaten, or of the plate withinthe platen which is beingpunched.

When-allof the punches have been driven through the 7 plate the platenis run out from under head 2; The upper or punch portiono f the platenis rotatedupward,

permitting the removal of the plate and the insertion of another one. Bythis means any number ofplates may be punched, having the assembledlocation of punchholes exact duplicates of each other. This i's adifiicult matter to perform with machines in use previous to thisinvention, and especially sowhere the holes must be arranged irregularlyover the surface of the plate. The

toggle-beams 10 and toggles 11 supp0rti'ngbed-plate9 are for the purposeof lowering bed plateil during the time when theplaten is naming, and itis lowered for the purpose-of fleeing the lower end of the dies fromobstruction. The bed-plate 9 is brought up in contact with .the bottomof the dies during the punching opera tion. The wedge blocks 41inFigs.'2 and 4 are adjust-" ably arranged in '1 slot 42 in Fig. l for thepusposeof actuating'an'y power controlling device for controlling thestarting and stopping operation. 7 p

4 Many variations may be made in the form and arrange.- ement oi themachine, the punch and die carriers, the

power actuating mechanism, the die-and punch holders, and thestopping'devices, without departing from my invention:

I claim:

1. In a plate punching machine, a press haying a reiL-ip:

rocatlnghead, a movable frame in which a plurality of punches and diesare adj'ustably locatedpver an area greater than the area of thereciprocating head and means for moving the frame relatively to thereciprocating head.

so as to bring allot the punches within the area or action of thereciprocating head.

2. The combination with a press, of a table in the press, punches andpunch-dies located on the table means whereby the punches and punch diesmay be adjusted to any desired position and a means'for moving the tablelaterally step by step through the press.

- 3. A punching machine having a punch and die for each hole to bepunched inthe plate, the punches and dies being adjustabiylocated on aframework moving laterally step by stepthrough the machine. v

4. A punching machine havlng a plurality of punches and'dies; thepunches and dies located on a movableplaten having a framework or barsto which the punches and dies areadjustably "clamped. p

5. The combination with aj press, of a platen carrying punches and diesand moving under the press, the platen having a top hinged along oneedge to the, platen-frame.

' 6. The combination with a press, of a plateau movable transverselythereof, punches mounted on'the platen yieldlngly held inretracted-position, and dies on the'plate'n for cooperating with thepunches.

- 7 lh'e' combination with a platen movable transversely thereof andprovided with punclis'and dies, and a bed on which the dies are supportedin aline'ment with the punches during 'the punching operation.

In testimony whereof, I have hereunto set my hand.

EDGAR WEBSTER SUMMERS.

I Witnesses:

R. N. Lower, CHAS. H. CLARK.

firess having a head, of a:

